US 12,472,610 B2
Powered fastener driver
Travis W. Leathrum, Milwaukee, WI (US); and Troy C. Thorson, Cedarburg, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 25, 2023, as Appl. No. 18/493,927.
Claims priority of provisional application 63/419,072, filed on Oct. 25, 2022.
Prior Publication US 2024/0131675 A1, Apr. 25, 2024
Prior Publication US 2024/0227147 A9, Jul. 11, 2024
Int. Cl. B25C 1/06 (2006.01); B25C 1/04 (2006.01)
CPC B25C 1/047 (2013.01) [B25C 1/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A powered fastener driver comprising:
a housing;
an inner cylinder within the housing;
a piston movable within the inner cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position, the piston having a diameter of less than or equal to 1.5 inches, and a stroke length of the piston between the TDC position and the BDC position measuring greater than 3 inches;
a driver blade attached to the piston for movement therewith along a driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece;
a lifter operable to move the piston and driver blade from the BDC position toward the TDC position; and
a drive unit operably coupled to the lifter to provide torque thereto, causing the lifter to rotate, and
a source of pressurized gas in fluid communication with the inner cylinder,
wherein a pressure of the pressurized gas acting on the piston at the TDC position is at least 236 psi.